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WILLSEMI WL2836D12-4/TR WL2836D12
Configuration
1 options
Configuration
26+
Available for RFQ
Technical data
Product details
19
specifications
Core information
- Product name
- WILLSEMI WL2836D12-4 / TR
- Type
- WILLSEMI
- Minimum package
- 10000 圆盘
Technical parameters
- Electronic Component
- Electronic Component
- Electronic Component
- WILLSEMI
- Electronic Component
- WL2836D12-4/TR
- Electronic Component
- 1
- Package
- DFN1x1-4L
- Electronic Component
- Linear Regulator(LDO)
- Electronic Component
- 0.012g
- Electronic Component
- 1
- Electronic Component
- BM0228747268
- Operating Temperature
- 40℃~+85℃@(Ta)
- Operating Voltage
- 5.5V
- Output
- Electronic Component
- Output Voltage
- 1.2V
- Output Current
- 300mA
- Output Type
- Electronic Component
- Output Channel Count
- 1
For datasheets, package documents, compatible-part guidance, or other technical resources, contact WMSIC customer service. Availability is confirmed case by case.
WL2836D12-4/TR 产品概述
一、概述
WL2836D12-4/TR 是 WILLSEMI（韦尔）推出的一款小封装、低噪声固定输出线性稳压器（LDO），输出电压为 1.2V，最大输出电流 300mA。器件集成使能（EN）端、短路保护和过热保护，工作环境温度范围为 -40℃ 到 +85℃（Ta），封装为紧凑型 DFN1×1-4L，适合空间受限且对电源净化要求高的电路板应用。
二、主要特性
- 固定输出：1.2V（正极输出）
- 输入电压：典型工作电压 5.5V（器件可在此供电电压下工作）
- 输出电流：最高可提供 300mA 连续负载
- 高 PSRR：78dB @ 1kHz，良好的纹波抑制能力，适合降噪需求严格的电源设计
- 保护功能：短路保护（限流）与热关断保护，提升系统可靠性
- 控制端：带使能（EN）引脚，可实现电源软启动/关断或外部控制
- 工作温度范围：-40℃ ~ +85℃（Ta）
- 封装：DFN1×1-4L，适合便携式与高密度应用
三、优势与设计价值
- 低噪声、高 PSRR：78dB（1kHz）有效抑制来自开关电源或其它噪声源的干扰，适合为敏感模拟电路、ADC、RF 前端或 MCU 核心供电。
- 小尺寸封装：DFN1×1-4L 占板面积小，适合手机、可穿戴、物联网终端等尺寸受限的产品。
- 完善的保护机制：短路与过热保护降低了系统失效风险，配合 EN 引脚可实现灵活的电源管理策略。
- 简化外围：固定输出省去外部分压设置，降低 BOM 与调试复杂度。
四、典型应用场景
- MCU/FPGA/ASIC 的核心电源（1.2V rails）
- 传感器、模拟前端与低噪声放大器供电
- 通信与射频模块的基带或模拟电源
- 电池供电或便携式设备的局部稳压
- 工业控制与消费电子小型化电源模块
五、典型应用连接与封装、PCB 布局建议
典型应用电路非常简洁：输入端（IN）与地之间并联一个去耦电容，输出端（OUT）并联一个低 ESR 陶瓷电容，EN 引脚通过高电平使能或通过电阻拉低禁用以节省静态功耗。建议：
- 输出电容：采用 X5R/X7R 陶瓷电容，容量与 ESR 依应用需求选择，常见值 1µF~10µF（参照厂方推荐的稳定性范围）。
- 输入去耦：在 IN 引脚附近放置 1µF~10µF 陶瓷电容，尽量靠近器件引脚以降低寄生。
- 布局：IN、OUT 与 GND 的走线尽量短且宽，GND 回路要可靠，DFN 底部散热焊盘应良好接地并设计为热通道以利散热。
- 热管理：在高功耗或高环境温度条件下考虑 PCB 散热，配合器件的热关断保护使用可提高系统可靠性。
六、订购信息与注意事项
- 型号：WL2836D12-4/TR（WILLSEMI）
- 封装：DFN1×1-4L
使用时请参考厂方完整数据手册，确认输入电压范围、输出电容稳定性条件及 EN 引脚的逻辑电平要求，以确保在目标应用中获得最佳性能与可靠性。
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